Hello, I wanted to know if evening primrose oil can interfere with my medication (Venlafaxine and Vyvance)

Hello!

There could be a minor interaction with Venlafaxine. Evening primrose oil could potentially increase the concentrations of Venlafaxine and therefore increase the potential risk of having the side effects of this medication. This interaction is theoretical.

It is difficult to know all the interactions of natural products because few studies support their safety and efficacy.

Therefore, I would advise you to be cautious. If you are taking a dose of Venlafaxine of 150mg or more, I think it would be best to avoid the product or if you are already having adverse reactions with Venlafaxine.

Have a nice day!

Marie-Laurence Gauthier, pharmacist.